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van Bemmelen RSA, Moe B, Schekkerman H, Hansen SA, Snell KRS, Humphreys EM, Mäntylä E, Hallgrimsson GT, Gilg O, Ehrich D, Calladine J, Hammer S, Harris S, Lang J, Vignisson SR, Kolbeinsson Y, Nuotio K, Sillanpää M, Sittler B, Sokolov A, Klaassen RHG, Phillips RA, Tulp I. Synchronous timing of return to breeding sites in a long-distance migratory seabird with ocean-scale variation in migration schedules. MOVEMENT ECOLOGY 2024; 12:22. [PMID: 38520007 PMCID: PMC10960466 DOI: 10.1186/s40462-024-00459-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 02/12/2024] [Indexed: 03/25/2024]
Abstract
BACKGROUND Migratory birds generally have tightly scheduled annual cycles, in which delays can have carry-over effects on the timing of later events, ultimately impacting reproductive output. Whether temporal carry-over effects are more pronounced among migrations over larger distances, with tighter schedules, is a largely unexplored question. METHODS We tracked individual Arctic Skuas Stercorarius parasiticus, a long-distance migratory seabird, from eight breeding populations between Greenland and Siberia using light-level geolocators. We tested whether migration schedules among breeding populations differ as a function of their use of seven widely divergent wintering areas across the Atlantic Ocean, Mediterranean Sea and Indian Ocean. RESULTS Breeding at higher latitudes led not only to later reproduction and migration, but also faster spring migration and shorter time between return to the breeding area and clutch initiation. Wintering area was consistent within individuals among years; and more distant areas were associated with more time spent on migration and less time in the wintering areas. Skuas adjusted the period spent in the wintering area, regardless of migration distance, which buffered the variation in timing of autumn migration. Choice of wintering area had only minor effects on timing of return at the breeding area and timing of breeding and these effects were not consistent between breeding populations. CONCLUSION The lack of a consistent effect of wintering area on timing of return between breeding areas indicates that individuals synchronize their arrival with others in their population despite extensive individual differences in migration strategies.
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Affiliation(s)
- Rob S A van Bemmelen
- Wageningen Marine Research, Haringkade 1, 1976 CP, IJmuiden, The Netherlands.
- Waardenburg Ecology, Culemborg, The Netherlands.
| | - Børge Moe
- Norwegian Institute for Nature Research (NINA), Trondheim, Norway
| | | | | | - Katherine R S Snell
- Center for Macroecology, Evolution and Climate, Globe Institute, University of Copenhagen, Copenhagen, Denmark
- Max Planck Institute of Animal Behavior, Radolfzell, Germany
- Centre for the Advanced Study of Collective Behaviour, University of Konstanz, Constance, Germany
| | - Elizabeth M Humphreys
- British Trust for Ornithology (BTO), Scotland, Stirling University Innovation Park, Stirling, FK9 4NF, UK
| | - Elina Mäntylä
- Section of Ecology, Department of Biology, University of Turku, Turku, Finland
- Applied Zoology/Animal Ecology, Institute of Biology, Freie Universität Berlin, Berlin, Germany
- Institute of Entomology, Biology Centre of the Czech Academy of Sciences, České Budějovice, Czech Republic
- Faculty of Sciences, University of South Bohemia, České Budějovice, Czech Republic
| | | | - Olivier Gilg
- UMR 6249 Chrono-Environnement, CNRS, Université de Bourgogne Franche Comté, 25000, Besançon, France
- Groupe de Recherche en Ecologie Arctique, 16 Rue de Vernot, 21440, Francheville, France
| | | | - John Calladine
- British Trust for Ornithology (BTO), Scotland, Stirling University Innovation Park, Stirling, FK9 4NF, UK
| | - Sjúrður Hammer
- Faculty of Science and Technology, University of the Faroe Islands, Vestarabryggja 15, 100, Tórshavn, Faroe Islands
| | - Sarah Harris
- British Trust for Ornithology (BTO), The Nunnery, Thetford, Norfolk, IP24 2PU, UK
| | - Johannes Lang
- Groupe de Recherche en Ecologie Arctique, 16 Rue de Vernot, 21440, Francheville, France
- University of Giessen, Giessen, Germany
| | | | | | - Kimmo Nuotio
- Pori Ornithological Society, Pori, Finland
- Environmental Agency, Pori, Finland
| | | | - Benoît Sittler
- Groupe de Recherche en Ecologie Arctique, 16 Rue de Vernot, 21440, Francheville, France
- University of Freiburg, Freiburg, Germany
| | - Aleksandr Sokolov
- Arctic Research Station of Institute of Plant and Animal Ecology, Ural Branch, Russian Academy of Sciences, Labytnangi, Russia
| | - Raymond H G Klaassen
- Conservation Ecology Group, Groningen Institute for Evolutionary Life Sciences (GELIFES), Groningen University, Groningen, The Netherlands
| | - Richard A Phillips
- British Antarctic Survey (BAS), Natural Environment Research Council (NERC), Cambridge, UK
| | - Ingrid Tulp
- Wageningen Marine Research, Haringkade 1, 1976 CP, IJmuiden, The Netherlands.
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Basso E, Horstmann J, Rakhimberdiev E, Abad-Gómez JM, Masero JA, Gutiérrez JS, Valenzuela J, Ruiz J, Navedo JG. GPS tracking analyses reveal finely-tuned shorebird space use and movement patterns throughout the non-breeding season in high-latitude austral intertidal areas. MOVEMENT ECOLOGY 2023; 11:55. [PMID: 37658459 PMCID: PMC10474677 DOI: 10.1186/s40462-023-00411-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 07/24/2023] [Indexed: 09/03/2023]
Abstract
BACKGROUND Long-distance migratory birds spend most of their annual cycle in non-breeding areas. During this period birds must meet their daily nutritional needs and acquire additional energy intake to deal with future events of the annual cycle. Therefore, patterns of space use and movement may emerge as an efficient strategy to maintain a trade-off between acquisition and conservation of energy during the non-breeding season. However, there is still a paucity of research addressing this issue, especially in trans-hemispheric migratory birds. METHODS Using GPS-tracking data and a recently developed continuous-time stochastic process modeling framework, we analyzed fine-scale movements in a non-breeding population of Hudsonian godwits (Limosa haemastica), a gregarious long-distance migratory shorebird. Specifically, we evaluated if these extreme migrants exhibit restricted, shared, and periodic patterns of space use on one of their main non-breeding grounds in southern South America. Finally, via a generalized additive model, we tested if the observed patterns were consistent within a circadian cycle. RESULTS Overall, godwits showed finely-tuned range-residence and periodic movements (each 24-72 h), being similar between day and night. Remarkably, range-resident individuals segregated spatially into three groups. In contrast, a smaller fraction of godwits displayed unpredictable and irregular movements, adding functional connectivity within the population. CONCLUSIONS In coastal non-breeding areas where resource availability is highly predictable due to tidal cycles, range-resident strategies during both the day and night are the common pattern in a long-distance shorebird population. Alternative patterns exhibited by a fraction of non-resident godwits provide functional connectivity and suggest that the exploratory tendency may be essential for information acquisition and associated with individual traits. The methodological approach we have used contributes to elucidate how the composition of movement phases operates during the non-breeding season in migratory species and can be replicated in non-migratory species as well. Finally, our results highlight the importance of considering movement as a continuum within the annual cycle.
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Affiliation(s)
- Enzo Basso
- Bird Ecology Lab, Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile.
- Programa de Doctorado en Ecología y Evolución, Facultad de Ciencias, Universidad Austral de Chile, Valdivia, Chile.
| | - Johannes Horstmann
- Bird Ecology Lab, Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
| | - Eldar Rakhimberdiev
- Department of Theoretical and Computational Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
| | - José M Abad-Gómez
- Department of Anatomy, Cell Biology and Zoology, Faculty of Sciences, University of Extremadura, Badajoz, Spain
| | - José A Masero
- Ecology in the Anthropocene, Associated Unit CSIC-UEX, Zoology, Faculty of Sciences, University of Extremadura, Badajoz, Spain
| | - Jorge S Gutiérrez
- Ecology in the Anthropocene, Associated Unit CSIC-UEX, Zoology, Faculty of Sciences, University of Extremadura, Badajoz, Spain
| | - Jorge Valenzuela
- Centro de Estudios y Conservación del Patrimonio Natural (CECPAN), Chiloé, Chile
| | - Jorge Ruiz
- Bird Ecology Lab, Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
- Estación Experimental Quempillén, Facultad de Ciencias, Universidad Austral de Chile, Chiloé, Chile
| | - Juan G Navedo
- Bird Ecology Lab, Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
- Department of Anatomy, Cell Biology and Zoology, Faculty of Sciences, University of Extremadura, Badajoz, Spain
- Estación Experimental Quempillén, Facultad de Ciencias, Universidad Austral de Chile, Chiloé, Chile
- Millennium Institute Biodiversity of Antarctic and Subantarctic Ecosystems (BASE), Santiago, Chile
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Navedo JG, Piersma T. Do 50‐year‐old Ramsar criteria still do the best possible job? A plea for broadened scientific underpinning of the global protection of wetlands and migratory waterbirds. Conserv Lett 2023. [DOI: 10.1111/conl.12941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023] Open
Affiliation(s)
- Juan G. Navedo
- Millennium Institute Biodiversity of Antarctic and Subantarctic Ecosystems (BASE) Santiago Chile
- Bird Ecology Lab, Instituto de Ciencias Marinas y Limnológicas Universidad Austral de Chile Valdivia Chile
- Área de Zoología Universidad de Extremadura Badajoz Spain
- BirdEyes, Centre for Global Ecological Change at the Faculties of Science & Engineering and Campus Fryslân University of Groningen Leeuwarden The Netherlands
| | - Theunis Piersma
- BirdEyes, Centre for Global Ecological Change at the Faculties of Science & Engineering and Campus Fryslân University of Groningen Leeuwarden The Netherlands
- Rudi Drent Chair in Global Flyway Ecology Conservation Ecology Group, University of Groningen Groningen The Netherlands
- Department of Coastal Systems NIOZ Royal Netherlands Institute for Sea Research Den Burg The Netherlands
- Center for East Asian–Australasian Flyway Studies, School of Ecology and Nature Conservation Beijing Forestry University Beijing China
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4
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Clements SJ, Loghry JP, Ballard BM, Weegman MD. Carry‐over effects of weather and decision‐making on nest success of a migratory shorebird. Ecol Evol 2022; 12:e9581. [PMCID: PMC9745104 DOI: 10.1002/ece3.9581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 11/15/2022] [Accepted: 11/18/2022] [Indexed: 12/15/2022] Open
Affiliation(s)
- Sarah J. Clements
- School of Natural Resources University of Missouri Columbia Missouri USA
| | - Jason P. Loghry
- Caesar Kleberg Wildlife Research Institute Texas A&M University Kingsville Texas USA
| | - Bart M. Ballard
- Caesar Kleberg Wildlife Research Institute Texas A&M University Kingsville Texas USA
| | - Mitch D. Weegman
- School of Natural Resources University of Missouri Columbia Missouri USA
- Department of Biology University of Saskatchewan Saskatoon Saskatchewan Canada
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5
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Shorebirds and the Dispersal of Bipolar Plant Species to South America. INTERNATIONAL JOURNAL OF PLANT BIOLOGY 2022. [DOI: 10.3390/ijpb13020013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Among the most distantly separated plant species are those that are found on the polar regions of the northern and southern hemispheres, the so-called bipolar species. Two routes of introduction have been proposed—long-distance dispersal (LDD) and mountain hopping (MH). Shorebirds have been implicated in the distribution of the bipolar species by several authors, but the most likely participants and the most probable routes of introduction have been little investigated. The Global Biodiversity Information Facility database was accessed to determine the geographic range of those angiosperm species that have been reported to have bipolar distributions. A bipolar plant species was considered most likely to have been dispersed by LDD if it has a distinct disjunct distribution between North and South America, and through MH if it is found in intermediate latitudes. The Atlas of Bird Migrations and the Cornell Birds of the World database were searched to discover which birds make long-distance migrations from Arctic North America to the tip of South America, and their mode of travel. Twenty-three plant species have been identified as bipolar. LDD appears to have been more important than MH in their dispersal, as seventeen (75%) have disjunct distributions and six (25%) are found in intermediate latitudes. The most likely players in the LDD dispersal of the bipolar plant species are the Eskimo Curlew, Hudsonian Godwit, Red Knot, Ruddy Turnstone and Whimbrel. Of these five long flyers, the Hudsonian Godwit may have delivered the most seeds as its breeding and migration ranges overlap with the most bipolar species, 12 in all.
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Linscott JA, Navedo JG, Clements SJ, Loghry JP, Ruiz J, Ballard BM, Weegman MD, Senner NR. Compensation for wind drift prevails for a shorebird on a long-distance, transoceanic flight. MOVEMENT ECOLOGY 2022; 10:11. [PMID: 35255994 PMCID: PMC8900403 DOI: 10.1186/s40462-022-00310-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2021] [Accepted: 02/18/2022] [Indexed: 05/13/2023]
Abstract
BACKGROUND Conditions encountered en route can dramatically impact the energy that migratory species spend on movement. Migratory birds often manage energetic costs by adjusting their behavior in relation to wind conditions as they fly. Wind-influenced behaviors can offer insight into the relative importance of risk and resistance during migration, but to date, they have only been studied in a limited subset of avian species and flight types. We add to this understanding by examining in-flight behaviors over a days-long, barrier-crossing flight in a migratory shorebird. METHODS Using satellite tracking devices, we followed 25 Hudsonian godwits (Limosa haemastica) from 2019-2021 as they migrated northward across a largely transoceanic landscape extending > 7000 km from Chiloé Island, Chile to the northern coast of the Gulf of Mexico. We identified in-flight behaviors during this crossing by comparing directions of critical movement vectors and used mixed models to test whether the resulting patterns supported three classical predictions about wind and migration. RESULTS Contrary to our predictions, compensation did not increase linearly with distance traveled, was not constrained during flight over open ocean, and did not influence where an individual ultimately crossed over the northern coast of the Gulf of Mexico at the end of this flight. Instead, we found a strong preference for full compensation throughout godwit flight paths. CONCLUSIONS Our results indicate that compensation is crucial to godwits, emphasizing the role of risk in shaping migratory behavior and raising questions about the consequences of changing wind regimes for other barrier-crossing aerial migrants.
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Affiliation(s)
- Jennifer A Linscott
- Department of Biological Sciences, University of South Carolina, 715 Sumter Street, Columbia, SC, 29208, USA.
| | - Juan G Navedo
- Estacion Experimental Quempillén, Facultad de Ciencias, Universidad Austral de Chile, Ancud, Chiloé, Chile
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
| | - Sarah J Clements
- School of Natural Resources, University of Missouri, 103 Anheuser-Busch Natural Resources Building, Columbia, MO, 65211, USA
| | - Jason P Loghry
- Texas A&M University, Kingsville, 700 University Blvd., MSC 218, Kingsville, TX, 78363, USA
| | - Jorge Ruiz
- Estacion Experimental Quempillén, Facultad de Ciencias, Universidad Austral de Chile, Ancud, Chiloé, Chile
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
| | - Bart M Ballard
- Texas A&M University, Kingsville, 700 University Blvd., MSC 218, Kingsville, TX, 78363, USA
| | - Mitch D Weegman
- Department of Biology, University of Saskatchewan, 112 Science Place, Saskatoon, SK, S7N 5E2, Canada
| | - Nathan R Senner
- Department of Biological Sciences, University of South Carolina, 715 Sumter Street, Columbia, SC, 29208, USA
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Steenweg RJ, Crossin GT, Hennin HL, Gilchrist HG, Love OP. Favorable spring conditions can buffer the impact of winter carryover effects on a key breeding decision in an Arctic-breeding seabird. Ecol Evol 2022; 12:e8588. [PMID: 35154656 PMCID: PMC8826066 DOI: 10.1002/ece3.8588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 01/13/2022] [Accepted: 01/15/2022] [Indexed: 11/27/2022] Open
Abstract
The availability and investment of energy among successive life-history stages is a key feature of carryover effects. In migratory organisms, examining how both winter and spring experiences carryover to affect breeding activity is difficult due to the challenges in tracking individuals through these periods without impacting their behavior, thereby biasing results.Using common eiders Somateria mollissima, we examined whether spring conditions at an Arctic breeding colony (East Bay Island, Nunavut, Canada) can buffer the impacts of winter temperatures on body mass and breeding decisions in birds that winter at different locations (Nuuk and Disko Bay, Greenland, and Newfoundland, Canada; assessed by analyzing stable isotopes of 13-carbon in winter-grown claw samples). Specifically, we used path analysis to examine how wintering and spring environmental conditions interact to affect breeding propensity (a key reproductive decision influencing lifetime fitness in female eiders) within the contexts of the timing of colony arrival, pre-breeding body mass (body condition), and a physiological proxy for foraging effort (baseline corticosterone).We demonstrate that warmer winter temperatures predicted lower body mass at arrival to the nesting colony, whereas warmer spring temperatures predicted earlier arrival dates and higher arrival body mass. Both higher body mass and earlier arrival dates of eider hens increased the probability that birds would initiate laying (i.e., higher breeding propensity). However, variation in baseline corticosterone was not linked to either winter or spring temperatures, and it had no additional downstream effects on breeding propensity.Overall, we demonstrate that favorable pre-breeding conditions in Arctic-breeding common eiders can compensate for the impact that unfavorable wintering conditions can have on breeding investment, perhaps due to greater access to foraging areas prior to laying.
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Affiliation(s)
| | - Glenn T. Crossin
- Department of BiologyDalhousie UniversityHalifaxNova ScotiaCanada
| | - Holly L. Hennin
- Environment and Climate Change CanadaNational Wildlife Research CentreCarleton UniversityOttawaOntarioCanada
- Department of Integrative BiologyUniversity of WindsorWindsorOntarioCanada
| | - H. Grant Gilchrist
- Environment and Climate Change CanadaNational Wildlife Research CentreCarleton UniversityOttawaOntarioCanada
| | - Oliver P. Love
- Department of Integrative BiologyUniversity of WindsorWindsorOntarioCanada
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Kwon E, Valcu M, Cragnolini M, Bulla M, Lyon B, Kempenaers B. OUP accepted manuscript. Behav Ecol 2022; 33:592-605. [PMID: 35592879 PMCID: PMC9113309 DOI: 10.1093/beheco/arac014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 12/14/2021] [Accepted: 01/28/2022] [Indexed: 11/12/2022] Open
Abstract
Sex-bias in breeding dispersal is considered the norm in many taxa, and the magnitude and direction of such sex-bias is expected to correlate with the social mating system. We used local return rates in shorebirds as an index of breeding site fidelity, and hence as an estimate of the propensity for breeding dispersal, and tested whether variation in site fidelity and in sex-bias in site fidelity relates to the mating system. Among 111 populations of 49 species, annual return rates to a breeding site varied between 0% and 100%. After controlling for body size (linked to survival) and other confounding factors, monogamous species showed higher breeding site fidelity compared with polyandrous and polygynous species. Overall, there was a strong male bias in return rates, but the sex-bias in return rate was independent of the mating system and did not covary with the extent of sexual size dimorphism. Our results bolster earlier findings that the sex-biased dispersal is weakly linked to the mating system in birds. Instead, our results show that return rates are strongly correlated with the mating system in shorebirds regardless of sex. This suggests that breeding site fidelity may be linked to mate fidelity, which is only important in the monogamous, biparentally incubating species, or that the same drivers influence both the mating system and site fidelity. The strong connection between site fidelity and the mating system suggests that variation in site fidelity may have played a role in the coevolution of the mating system, parental care, and migration strategies.
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Affiliation(s)
- Eunbi Kwon
- Department of Behavioural Ecology & Evolutionary Genetics, Max Planck Institute for Ornithology, Eberhard-Gwinner-Str. 8, D-82319 Seewiesen, Germany
- Address correspondence to E. Kwon. E-mail:
| | - Mihai Valcu
- Department of Behavioural Ecology & Evolutionary Genetics, Max Planck Institute for Ornithology, Eberhard-Gwinner-Str. 8, D-82319 Seewiesen, Germany
| | - Margherita Cragnolini
- Department of Behavioural Ecology & Evolutionary Genetics, Max Planck Institute for Ornithology, Eberhard-Gwinner-Str. 8, D-82319 Seewiesen, Germany
| | - Martin Bulla
- Department of Behavioural Ecology & Evolutionary Genetics, Max Planck Institute for Ornithology, Eberhard-Gwinner-Str. 8, D-82319 Seewiesen, Germany
- Faculty of Environmental Sciences, Czech University of Life Sciences Prague, Kamýcká 129, 165 00 Prague, Czech Republic
| | - Bruce Lyon
- Department of Ecology and Evolutionary Biology, University of California, 130 McAllister Way, Santa Cruz, CA 95060, USA
| | - Bart Kempenaers
- Department of Behavioural Ecology & Evolutionary Genetics, Max Planck Institute for Ornithology, Eberhard-Gwinner-Str. 8, D-82319 Seewiesen, Germany
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Bani Assadi S, Fraser KC. The Influence of Different Light Wavelengths of Anthropogenic Light at Night on Nestling Development and the Timing of Post-fledge Movements in a Migratory Songbird. Front Ecol Evol 2021. [DOI: 10.3389/fevo.2021.735112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Many different aspects of an animal’s lifecycle such as its behavior, patterns of hormone activity, and internal clock time, can be affected by anthropogenic light at night (ALAN). Exposing an organism to ALAN during its early life could also have an impact on its development. Since photoperiod can trigger or schedule the migration timing of long-distance migratory birds, there is great potential for anthropogenic light to interact with photoperiod to affect timing. However, very little has been investigated regarding the impacts of ALAN on post-hatching development and migration timing. We investigated the impact of ALAN during nestling development in a long-distance migratory songbird to determine the potential impact on the timing of post-breeding movements in the wild. We experimentally manipulated the light by using programmable lighting, in the nest boxes of free-living nestlings of purple martin (Progne subis) in Manitoba, Canada. We exposed two groups of developing nestlings, from hatch to fledge date, to green or white LED lights (5 lux) during the night. We also included a control group that experienced natural, ambient light at night. We found that some adults abandoned their nests shortly after starting the experiment (4 of 15 nests in the white light treatment). For the nests that remained active, nestlings exposed to the white light treatment had higher weights (at day 20 or 22), later fledge dates (1.54 ± 0.37, 95% CI 0.80–2.28), and later colony departure date (2.84 ± 1.00, 95% CI 0.88–4.81), than young of the control group. Moreover, nestlings of both white and green light groups had longer nesting duration than nestlings of the control group. This study demonstrates the impact of ALAN on the development of post-breeding movement timing in nestlings of wild migratory birds. However, our results also indicate that green light may have less of an impact as compared to white light.
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Navedo JG, Araya V, Verdugo C. Upraising a silent pollution: Antibiotic resistance at coastal environments and transference to long-distance migratory shorebirds. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 777:146004. [PMID: 33689894 DOI: 10.1016/j.scitotenv.2021.146004] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 02/14/2021] [Accepted: 02/16/2021] [Indexed: 06/12/2023]
Abstract
Large amounts of antibiotics from different sources have been released into coastal environments, especially in high human-populated areas, but comprehensive studies of antibiotic footprint in wildlife are scarce. Here we assess occurrence of antibiotic resistant bacteria (ARB) and antibiotic resistance gene (ARG) both in sediments and gut microbiota of a long-distance migratory shorebird species in two coastal wetlands at a sparsely-populated area in Pacific Patagonian coasts with contrasting potential antibiotic sources, especially from aquaculture. We found 62% of sediment samples showing ARB, and ARGs similarly occurring in sediments at both bays. However multi-resistant ARB were found only at sediments in the bay surrounding aquaculture operations. An 87% of cloacal bird samples showed at least one ARB, with 63% being multi-resistant and some of them with a high potential pathogenicity. ARGs were present in 46% of the samples from birds, with similar multi-resistant frequencies among bays. Besides specific differences mainly associated to antibiotics used in salmon aquaculture that boosted ARB in sediments, ARB and ARGs occurrence was overall similar at two bays with contrasting main human activities, in spite of being a comparatively low human-populated area. Therefore, our results reinforce the idea that the antibiotic footprint may be widespread at a global scale and can extend beyond the geographical influence of antibiotic sources, especially at coastal environments where migratory shorebirds act both as reservoirs and potential spreaders of antibiotic resistance.
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Affiliation(s)
- Juan G Navedo
- Bird Ecology Lab, Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Chile; Estación Experimental Quempillén (Chiloé), Facultad de Ciencias, Universidad Austral de Chile, Chile.
| | - Valeria Araya
- Bird Ecology Lab, Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Chile
| | - Claudio Verdugo
- Ecology and Evolution of Infectious Diseases Lab, Instituto de Patología Animal, Facultad de Ciencias Veterinarias, Universidad Austral de Chile, Chile
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11
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Imlay TL, Mann HA, Taylor PD. Autumn migratory timing and pace are driven by breeding season carryover effects. Anim Behav 2021. [DOI: 10.1016/j.anbehav.2021.05.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Akresh ME, King DI, Marra PP. Hatching date influences winter habitat occupancy: Examining seasonal interactions across the full annual cycle in a migratory songbird. Ecol Evol 2021; 11:9241-9253. [PMID: 34306620 PMCID: PMC8293775 DOI: 10.1002/ece3.7500] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2020] [Revised: 03/04/2021] [Accepted: 03/12/2021] [Indexed: 02/01/2023] Open
Abstract
Birds experience a sequence of critical events during their life cycle, and past events can subsequently determine future performance via carry-over effects. Events during the non-breeding season may influence breeding season phenology or productivity. Less is understood about how events during the breeding season affect individuals subsequently in their life cycle. Using stable carbon isotopes, we examined carry-over effects throughout the annual cycle of prairie warblers (Setophaga discolor), a declining Nearctic-Neotropical migratory passerine bird. In drier winters, juvenile males that hatched earlier at our study site in Massachusetts, USA, occupied wetter, better-quality winter habitat in the Caribbean, as indicated by depleted carbon isotope signatures. For juveniles that were sampled again as adults, repeatability in isotope signatures indicated similar winter habitat occupancy across years. Thus, hatching date of juvenile males appears to influence lifetime winter habitat occupancy. For adult males, reproductive success did not carry over to influence winter habitat occupancy. We did not find temporally consecutive "domino" effects across the annual cycle (breeding to wintering to breeding) or interseasonal, intergenerational effects. Our finding that a male's hatching date can have a lasting effect on winter habitat occupancy represents an important contribution to our understanding of seasonal interactions in migratory birds.
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Affiliation(s)
- Michael E. Akresh
- Department of Environmental StudiesAntioch University New EnglandKeeneNHUSA
- Department of Environmental ConservationUniversity of Massachusetts AmherstAmherstMAUSA
| | - David I. King
- U.S. Forest Service Northern Research StationUniversity of Massachusetts AmherstAmherstMAUSA
| | - Peter P. Marra
- Department of Biology and McCourt School of Public PolicyGeorgetown UniversityWashingtonDCUSA
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13
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Brlík V, Malmiga G, Dimitrov D, Emmenegger T, Gavrilov A, Hasselquist D, Peev S, Willemoes M, Yohannes E, Hahn S, Hansson B, Procházka P. Population-specific assessment of carry-over effects across the range of a migratory songbird. Behav Ecol Sociobiol 2020. [DOI: 10.1007/s00265-020-02929-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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14
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Ramey AM, Reeves AB. Ecology of Influenza A Viruses in Wild Birds and Wetlands of Alaska. Avian Dis 2020; 64:109-122. [PMID: 32550610 DOI: 10.1637/0005-2086-64.2.109] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 03/05/2020] [Indexed: 11/05/2022]
Abstract
Alaska represents a globally important region for the ecology of avian-origin influenza A viruses (IAVs) given the expansive wetlands in this region, which serve as habitat for numerous hosts of IAVs that disperse among four continents during the annual cycle. Extensive sampling of wild birds for IAVs in Alaska since 1991 has greatly extended inference regarding intercontinental viral exchange between North America and East Asia and the importance of Beringian endemic species to IAV ecology within this region. Data on IAVs in aquatic birds inhabiting Alaska have also been useful for helping to establish global patterns of prevalence in wild birds and viral dispersal across the landscape. In this review, we summarize the main findings from investigations of IAVs in wild birds and wetlands of Alaska with the aim of providing readers with an understanding of viral ecology within this region. More specifically, we review viral detections, evidence of IAV exposure, and genetic characterization of isolates derived from wild bird samples collected in Alaska by host taxonomy. Additionally, we provide a short overview of wetland complexes within Alaska that may be important to IAV ecology at the continental scale.
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Affiliation(s)
- Andrew M Ramey
- U.S. Geological Survey, Alaska Science Center, Anchorage, AK 99508,
| | - Andrew B Reeves
- U.S. Geological Survey, Alaska Science Center, Anchorage, AK 99508
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15
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Gherardi-Fuentes C, Navedo JG, Verdugo C. The mitochondrial genome of two long-distance migratory shorebirds: the Hudsonian godwit ( Limosa haemastica) and the Red knot ( Calidris canutus). MITOCHONDRIAL DNA PART B-RESOURCES 2020; 5:3553-3554. [PMID: 33458238 PMCID: PMC7781980 DOI: 10.1080/23802359.2020.1827997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
We report the mitochondrial genome sequences of two migratory shorebirds, the Hudsonian godwit (Limosa haemastica) and the Red knot (Calidris canutus) obtained through shotgun sequencing. The mitogenome is of 16.445 bp for the godwit and 15.609 bp for the knot containing thirteen protein-coding genes, two rRNAs, twenty-two tRNAs, and a control region. The ATP8 and tRNA-Glu were not found in the knot. Bayesian phylogenetic analysis supported the position of both species in the clade of the Scolopacidae Family.
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Affiliation(s)
- Camila Gherardi-Fuentes
- Bird Ecology Lab, Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile.,Programa de Doctorado en Biología Marina, Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
| | - Juan G Navedo
- Bird Ecology Lab, Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile.,Facultad de Ciencias, Estación Experimental Quempillén (Chiloé), Universidad Austral de Chile, Valdivia, Chile
| | - Claudio Verdugo
- Facultad de Ciencias Veterinarias, Ecology and Evolution of Infectious Diseases Lab, Instituto de Patología Animal, Universidad Austral de Chile, Valdivia, Chile
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16
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Oversummering in the southern hemisphere by long-distance migratory shorebirds calls for reappraisal of wetland conservation policies. Glob Ecol Conserv 2020. [DOI: 10.1016/j.gecco.2020.e01189] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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17
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Robinson RA, Meier CM, Witvliet W, Kéry M, Schaub M. Survival varies seasonally in a migratory bird: Linkages between breeding and non-breeding periods. J Anim Ecol 2020; 89:2111-2121. [PMID: 32383289 DOI: 10.1111/1365-2656.13250] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 04/27/2020] [Indexed: 11/29/2022]
Abstract
Migratory species form an important component of biodiversity; they link ecosystems across the globe, but are increasingly threatened by global environmental change. Understanding and mitigating threats requires knowledge of how demographic processes operate throughout the annual cycle, but this can be difficult to achieve when breeding and non-breeding grounds are widely separated. Our goal is to quantify the importance of variability in survival during the breeding and non-breeding seasons in determining variation in annual survival using a single population and, more broadly, the extent to which annual survival across species reflects variation in probability of surviving the migratory period. We use a 25-year dataset in which individuals of a long-distance migratory bird, the alpine swift Tachymarptis melba, were captured towards the beginning and end of each breeding season to estimate age- and season-specific survival probabilities and incorporate explicit estimation of the correlations in survival between age-classes and seasons. Monthly survival was higher during the breeding period than during the rest of the year and strongly affected by conditions in the breeding season; effects that remained apparent in the following non-breeding season, but not subsequently. Recruitment of juveniles was dependent on the timing of breeding, being higher if egg-laying commenced before the median date, and substantially lower if not. Across migratory bird species, variation in annual survival largely reflects variation in the probability of surviving the migratory period. Using a double-capture approach, even within a single season, provides valuable insights into the demography of migratory species, which will help understand the extent and impacts of the threats they face in a changing world.
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Affiliation(s)
- Robert A Robinson
- Swiss Ornithological Institute, Sempach, Switzerland.,British Trust for Ornithology, Thetford, UK
| | | | | | - Marc Kéry
- Swiss Ornithological Institute, Sempach, Switzerland
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18
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Swift RJ, Rodewald AD, Johnson JA, Andres BA, Senner NR. Seasonal survival and reversible state effects in a long-distance migratory shorebird. J Anim Ecol 2020; 89:2043-2055. [PMID: 32358801 DOI: 10.1111/1365-2656.13246] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Accepted: 04/21/2020] [Indexed: 01/22/2023]
Abstract
Events during one stage of the annual cycle can reversibly affect an individual's condition and performance not only within that stage, but also in subsequent stages (i.e. reversible state effects). Despite strong conceptual links, however, few studies have been able to empirically link individual-level reversible state effects with larger-scale demographic processes. We studied both survival and potential reversible state effects in a long-distance migratory shorebird, the Hudsonian Godwit Limosa haemastica. Specifically, we estimated period-specific survival probabilities across the annual cycle and examined the extent to which an individual's body condition, foraging success and habitat quality during the nonbreeding season affected its subsequent survival and reproductive performance. Godwit survival rates were high throughout the annual cycle, but lowest during the breeding season, only slightly higher during southbound migration and highest during the stationary nonbreeding season. Our results indicate that overwintering godwits foraging in high-quality habitats had comparably better nutritional status and pre-migratory body condition, which in turn improved their return rates and the likelihood that their nests and chicks survived during the subsequent breeding season. Reversible state effects thus appeared to link events between nonbreeding and breeding seasons via an individual's condition, in turn affecting their survival and subsequent reproductive performance. Our study thus provides one of the few empirical demonstrations of theoretical predictions that reversible state effects have the potential to influence population dynamics.
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Affiliation(s)
- Rose J Swift
- Cornell Lab of Ornithology and Department of Natural Resources, Ithaca, NY, USA
| | - Amanda D Rodewald
- Cornell Lab of Ornithology and Department of Natural Resources, Ithaca, NY, USA
| | - James A Johnson
- U.S. Fish and Wildlife Service, Migratory Bird Management, Anchorage, AK, USA
| | - Brad A Andres
- U.S. Fish and Wildlife Service, Migratory Bird Program, Lakewood, CO, USA
| | - Nathan R Senner
- Department of Biological Sciences, University of South Carolina, Columbia, SC, USA
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19
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Gherardi-Fuentes C, Ruiz J, Verdugo C, Navedo JG. Male-biased adult sex ratio in non-breeding areas of an extreme long-distance migratory shorebird population. ACTA OECOLOGICA-INTERNATIONAL JOURNAL OF ECOLOGY 2020. [DOI: 10.1016/j.actao.2020.103560] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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20
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21
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Smith PA, McKinnon L, Meltofte H, Lanctot RB, Fox AD, Leafloor JO, Soloviev M, Franke A, Falk K, Golovatin M, Sokolov V, Sokolov A, Smith AC. Status and trends of tundra birds across the circumpolar Arctic. AMBIO 2020; 49:732-748. [PMID: 31955397 PMCID: PMC6989588 DOI: 10.1007/s13280-019-01308-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2019] [Revised: 09/18/2019] [Accepted: 12/09/2019] [Indexed: 05/26/2023]
Abstract
Tundra-breeding birds face diverse conservation challenges, from accelerated rates of Arctic climate change to threats associated with highly migratory life histories. Here we summarise the status and trends of Arctic terrestrial birds (88 species, 228 subspecies or distinct flyway populations) across guilds/regions, derived from published sources, raw data or, in rare cases, expert opinion. We report long-term trends in vital rates (survival, reproduction) for the handful of species and regions for which these are available. Over half of all circumpolar Arctic wader taxa are declining (51% of 91 taxa with known trends) and almost half of all waterfowl are increasing (49% of 61 taxa); these opposing trends have fostered a shift in community composition in some locations. Declines were least prevalent in the African-Eurasian Flyway (29%), but similarly prevalent in the remaining three global flyways (44-54%). Widespread, and in some cases accelerating, declines underscore the urgent conservation needs faced by many Arctic terrestrial bird species.
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Affiliation(s)
- Paul A. Smith
- Wildlife Research Division, Environment and Climate Change Canada, National Wildlife Research Centre, 1125 Colonel By Dr, Ottawa, ON K1S 5B6 Canada
- National Wildlife Research Centre, 1125 Colonel By Dr, Ottawa, ON K1S 5B6 Canada
| | - Laura McKinnon
- Department of Multidisciplinary Studies and Graduate Program in Biology, York University, Glendon Campus, 2275 Bayview Ave, Toronto, ON M5B 3M6 Canada
| | - Hans Meltofte
- Department of Bioscience, Aarhus University, Frederiksborgvej 399, 4000 Roskilde, Denmark
| | - Richard B. Lanctot
- Migratory Bird Management, U.S. Fish and Wildlife Service, 1011 East Tudor Road, Anchorage, AK 99503 USA
| | - Anthony D. Fox
- Department of Bioscience, Aarhus University, Kalø, Grenåvej 14, 8410 Rønde, Denmark
| | - James O. Leafloor
- Wildlife Research Division, Environment and Climate Change Canada, National Wildlife Research Centre, 1125 Colonel By Dr, Ottawa, ON K1S 5B6 Canada
- Canadian Wildlife Service, Environment and Climate Change Canada, 150-123 Main St, Winnipeg, MB R3C 4W2 Canada
- National Wildlife Research Centre, 1125 Colonel By Dr, Ottawa, ON K1S 5B6 Canada
| | - Mikhail Soloviev
- Department of Vertebrate Zoology, Lomonosov Moscow State University, Moscow, Russia 119991
| | - Alastair Franke
- Department of Biological Sciences, University of Alberta, Edmonton, AB Canada
| | - Knud Falk
- www.vandrefalk.dk, Ljusstöparbacken 11A, 11765 Stockholm, Sweden
| | - Mikhail Golovatin
- Institute of Plant and Animal Ecology Ural Branch, Russian Academy of Sciences, 8 Marta Str, 202, Ekaterinburg, Russia 620144
| | - Vasiliy Sokolov
- Institute of Plant and Animal Ecology Ural Branch, Russian Academy of Sciences, 8 Marta Str, 202, Ekaterinburg, Russia 620144
| | - Aleksandr Sokolov
- Arctic Research Station, Institute of Plant and Animal Ecology, Zelenaya Gorka Str., 21, Yamal-Nenets Autonomous District, Labytnangi, Russia 629400
| | - Adam C. Smith
- Canadian Wildlife Service, Environment and Climate Change Canada, 1125 Colonel By Dr, Ottawa, ON K1S 5B6 Canada
- Department of Biology, Carleton University, 1125 Colonel By Dr, Ottawa, ON K1S 5B6 Canada
- National Wildlife Research Centre, 1125 Colonel By Dr, Ottawa, ON K1S 5B6 Canada
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22
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Gutiérrez JS, Sabat P, Castañeda LE, Contreras C, Navarrete L, Peña-Villalobos I, Navedo JG. Oxidative status and metabolic profile in a long-lived bird preparing for extreme endurance migration. Sci Rep 2019; 9:17616. [PMID: 31772390 PMCID: PMC6879648 DOI: 10.1038/s41598-019-54057-6] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Accepted: 11/08/2019] [Indexed: 12/11/2022] Open
Abstract
The high metabolic activity associated with endurance flights and intense fuelling of migrant birds may produce large quantities of reactive oxygen species, which cause oxidative damage. Yet it remains unknown how long-lived birds prepare for oxidative challenges prior to extreme flights. We combined blood measurements of oxidative status and enzyme and fat metabolism in Hudsonian godwits (Limosa haemastica, a long-lived shorebird) before they embarked on non-stop flights longer than 10,000 km during their northbound migrations. We found that godwits increased total antioxidant capacity (TAC) and reduced oxidative damage (TBARS) as the pre-migratory season progressed, despite higher basal metabolic rates before departure. Elevations in plasma β-hydroxybutyrate and uric acid suggest that lipid and protein breakdown supports energetic requirements prior to migration. Significant associations between blood mitochondrial cytochrome-c oxidase and plasma TAC (negative) and TBARS (positive) during winter indicate that greater enzyme activity can result in greater oxidative damage and antioxidant responses. However enzyme activity remained unchanged between winter and premigratory stages, so birds may be unable to adjust metabolic enzyme activity in anticipation of future demands. These results indicate that godwits enhance their oxidative status during migratory preparation, which might represent an adaptation to diminish the physiological costs of long-distance migration.
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Affiliation(s)
- Jorge S Gutiérrez
- Estación Experimental Quempillén, Facultad de Ciencias, Universidad Austral de Chile, Ancud, Chiloé, Chile.
- Conservation Biology Research Group, Department of Anatomy, Cell Biology and Zoology, Faculty of Sciences, University of Extremadura, Badajoz, Spain.
| | - Pablo Sabat
- Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
- Center of Applied Ecology and Sustainability, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Luis E Castañeda
- Programa de Genética Humana, Facultad de Medicina, Instituto de Ciencias Biomédicas, Universidad de Chile, Santiago, Chile
| | - Carolina Contreras
- Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Lucas Navarrete
- Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Isaac Peña-Villalobos
- Departamento de Ciencias Ecológicas, Facultad de Ciencias, Universidad de Chile, Santiago, Chile
| | - Juan G Navedo
- Estación Experimental Quempillén, Facultad de Ciencias, Universidad Austral de Chile, Ancud, Chiloé, Chile
- Bird Ecology Lab, Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
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23
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Hill JM, Sandercock BK, Renfrew RB. Migration Patterns of Upland Sandpipers in the Western Hemisphere. Front Ecol Evol 2019. [DOI: 10.3389/fevo.2019.00426] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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24
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Pedersen L, Jakobsen NM, Strandberg R, Thorup K, Tøttrup AP. Sex-specific difference in migration schedule as a precursor of protandry in a long-distance migratory bird. Naturwissenschaften 2019; 106:45. [DOI: 10.1007/s00114-019-1637-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Revised: 05/20/2019] [Accepted: 06/17/2019] [Indexed: 01/02/2023]
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25
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de Zwaan DR, Wilson S, Gow EA, Martin K. Sex-Specific Spatiotemporal Variation and Carry-Over Effects in a Migratory Alpine Songbird. Front Ecol Evol 2019. [DOI: 10.3389/fevo.2019.00285] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
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26
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Carneiro C, Gunnarsson TG, Alves JA. Why Are Whimbrels Not Advancing Their Arrival Dates Into Iceland? Exploring Seasonal and Sex-Specific Variation in Consistency of Individual Timing During the Annual Cycle. Front Ecol Evol 2019. [DOI: 10.3389/fevo.2019.00248] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
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27
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Senner NR, Verhoeven MA, Abad-Gómez JM, Alves JA, Hooijmeijer JCEW, Howison RA, Kentie R, Loonstra AHJ, Masero JA, Rocha A, Stager M, Piersma T. High Migratory Survival and Highly Variable Migratory Behavior in Black-Tailed Godwits. Front Ecol Evol 2019. [DOI: 10.3389/fevo.2019.00096] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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28
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Navedo JG, Verdugo C, Rodríguez-Jorquera IA, Abad-Gómez JM, Suazo CG, Castañeda LE, Araya V, Ruiz J, Gutiérrez JS. Assessing the effects of human activities on the foraging opportunities of migratory shorebirds in Austral high-latitude bays. PLoS One 2019; 14:e0212441. [PMID: 30865657 PMCID: PMC6415798 DOI: 10.1371/journal.pone.0212441] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 02/01/2019] [Indexed: 11/19/2022] Open
Abstract
Human presence at intertidal areas could impact coastal biodiversity, including migratory waterbird species and the ecosystem services they provide. Assessing this impact is therefore essential to develop management measures compatible with migratory processes and associated biodiversity. Here, we assess the effects of human presence on the foraging opportunities of Hudsonian godwits (Limosa haemastica, a trans-hemispheric migratory shorebird) during their non-breeding season on Chiloé Island, southern Chile. We compared bird density and time spent foraging in two similar bays with contrasting disturbance levels: human presence (mostly seaweed harvesters accompanied by dogs) was on average 0.9±0.4 people per 10 ha in the disturbed bay, whereas it was negligible (95% days absent) in the non-disturbed bay. Although overall abundances were similar between bays, godwit density was higher in the non-disturbed bay throughout the low tide period. Both days after the start of the non-breeding season and tidal height significantly affected godwit density, with different effects in either bay. Time spent foraging was significantly higher in the non-disturbed bay (86.5±1.1%) than in the disturbed one (81.3±1.4%). As expected, godwit density significantly decreased with the number of people and accompanying dogs in the disturbed bay. Our results indicate that even a low density of people and dogs can significantly reduce the foraging opportunities of shorebirds. These constraints, coupled with additional flushing costs, may negatively affect godwits’ pre-migratory fattening. Hence, as a first step we suggest limiting human presence within bays on Chiloé to 1 person per 10 ha and banning the presence of accompanying dogs in sensitive conservation areas.
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Affiliation(s)
- Juan G. Navedo
- Bird Ecology Lab, Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
- Estación Experimental Quempillén, Chiloé, Facultad de Ciencias, Universidad Austral de Chile, Ancud, Chile
- * E-mail:
| | - Claudio Verdugo
- Ecología y Evolución de Enfermedades Infecciosas, Instituto de Patología Animal, Universidad Austral de Chile, Valdivia, Chile
| | | | - José M. Abad-Gómez
- Conservation Biology Research Group, Universidad de Extremadura, Badajoz, Spain
| | - Cristián G. Suazo
- Department of Animal Ecology and Systematics, Justus Liebig University Giessen, Giessen, Germany
| | - Luis E. Castañeda
- Programa de Genética Humana, Instituo de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Valeria Araya
- Bird Ecology Lab, Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
| | - Jorge Ruiz
- Bird Ecology Lab, Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
- Estación Experimental Quempillén, Chiloé, Facultad de Ciencias, Universidad Austral de Chile, Ancud, Chile
| | - Jorge S. Gutiérrez
- Estación Experimental Quempillén, Chiloé, Facultad de Ciencias, Universidad Austral de Chile, Ancud, Chile
- Centro de Estudos do Ambiente e do Mar (CESAM), Departamento de Biologia Animal, Faculdade de Ciências da Universidade de Lisboa, Lisbon, Portugal
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29
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Briedis M, Bauer S, Adamík P, Alves JA, Costa JS, Emmenegger T, Gustafsson L, Koleček J, Liechti F, Meier CM, Procházka P, Hahn S. A full annual perspective on sex-biased migration timing in long-distance migratory birds. Proc Biol Sci 2019; 286:20182821. [PMID: 30963841 PMCID: PMC6408886 DOI: 10.1098/rspb.2018.2821] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2018] [Accepted: 01/29/2019] [Indexed: 11/12/2022] Open
Abstract
In many taxa, the most common form of sex-biased migration timing is protandry-the earlier arrival of males at breeding areas. Here we test this concept across the annual cycle of long-distance migratory birds. Using more than 350 migration tracks of small-bodied trans-Saharan migrants, we quantify differences in male and female migration schedules and test for proximate determinants of sex-specific timing. In autumn, males started migration about 2 days earlier, but this difference did not carry over to arrival at the non-breeding sites. In spring, males on average departed from the African non-breeding sites about 3 days earlier and reached breeding sites ca 4 days ahead of females. A cross-species comparison revealed large variation in the level of protandry and protogyny across the annual cycle. While we found tight links between individual timing of departure and arrival within each migration season, only for males the timing of spring migration was linked to the timing of previous autumn migration. In conclusion, our results demonstrate that protandry is not exclusively a reproductive strategy but rather occurs year-round and the two main proximate determinants for the magnitude of sex-biased arrival times in autumn and spring are sex-specific differences in departure timing and migration duration.
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Affiliation(s)
- Martins Briedis
- Department of Bird Migration, Swiss Ornithological Institute, Sempach, Switzerland
| | - Silke Bauer
- Department of Bird Migration, Swiss Ornithological Institute, Sempach, Switzerland
| | - Peter Adamík
- Department of Zoology, Palacký University, Olomouc, Czech Republic
- Museum of Natural History, Olomouc, Czech Republic
| | - José A. Alves
- Department of Biology and Centre for Environmental and Marine Studies (CESAM), University of Aveiro, Aveiro, Portugal
- South Iceland Research Centre, University of Iceland, Laugarvatn, Iceland
| | - Joana S. Costa
- Department of Biology and Centre for Environmental and Marine Studies (CESAM), University of Aveiro, Aveiro, Portugal
| | - Tamara Emmenegger
- Department of Bird Migration, Swiss Ornithological Institute, Sempach, Switzerland
| | - Lars Gustafsson
- Department of Animal Ecology/Ecology and Genetics, Uppsala University, Uppsala, Sweden
| | - Jaroslav Koleček
- Institute of Vertebrate Biology, The Czech Academy of Sciences, Brno, Czech Republic
| | - Felix Liechti
- Department of Bird Migration, Swiss Ornithological Institute, Sempach, Switzerland
| | - Christoph M. Meier
- Department of Bird Migration, Swiss Ornithological Institute, Sempach, Switzerland
| | - Petr Procházka
- Institute of Vertebrate Biology, The Czech Academy of Sciences, Brno, Czech Republic
| | - Steffen Hahn
- Department of Bird Migration, Swiss Ornithological Institute, Sempach, Switzerland
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30
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Verhoeven MA, Loonstra AHJ, Senner NR, McBride AD, Both C, Piersma T. Variation From an Unknown Source: Large Inter-individual Differences in Migrating Black-Tailed Godwits. Front Ecol Evol 2019. [DOI: 10.3389/fevo.2019.00031] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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31
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Gow EA, Burke L, Winkler DW, Knight SM, Bradley DW, Clark RG, Bélisle M, Berzins LL, Blake T, Bridge ES, Dawson RD, Dunn PO, Garant D, Holroyd G, Horn AG, Hussell DJT, Lansdorp O, Laughlin AJ, Leonard ML, Pelletier F, Shutler D, Siefferman L, Taylor CM, Trefry H, Vleck CM, Vleck D, Whittingham LA, Norris DR. A range-wide domino effect and resetting of the annual cycle in a migratory songbird. Proc Biol Sci 2019; 286:20181916. [PMID: 30963870 PMCID: PMC6367182 DOI: 10.1098/rspb.2018.1916] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2018] [Accepted: 12/09/2018] [Indexed: 11/12/2022] Open
Abstract
Latitudinal differences in timing of breeding are well documented but how such differences carry over to influence timing of events in the annual cycle of migratory birds is not well understood. We examined geographical variation in timing of events throughout the year using light-level geolocator tracking data from 133 migratory tree swallows ( Tachycineta bicolor) originating from 12 North American breeding populations. A swallow's breeding latitude influenced timing of breeding, which then carried over to affect breeding ground departure. This resulted in subsequent effects on the arrival and departure schedules at autumn stopover locations and timing of arrival at non-breeding locations. This 'domino effect' between timing events was no longer apparent by the time individuals departed for spring migration. Our range-wide analysis demonstrates the lasting impact breeding latitude can have on migration schedules but also highlights how such timing relationships can reset when individuals reside at non-breeding sites for extended periods of time.
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Affiliation(s)
- Elizabeth A. Gow
- Department of Integrative Biology, University of Guelph, Guelph, Ontario, CanadaN1G 2W1
| | - Lauren Burke
- Department of Biology, Dalhousie University, Halifax, Nova Scotia, CanadaB3H 4R2
| | - David W. Winkler
- Department of Ecology and Evolutionary Biology, Museum of Vertebrates, Laboratory of Ornithology, Cornell University, Ithaca, NY 14853, USA
| | - Samantha M. Knight
- Department of Integrative Biology, University of Guelph, Guelph, Ontario, CanadaN1G 2W1
| | | | - Robert G. Clark
- Environment and Climate Change Canada, Saskatoon, Saskatchewan, CanadaS7N 0X4
| | - Marc Bélisle
- Département de Biologie, Université de Sherbrooke, Sherbrooke, Québec, CanadaJ1K 2R1
| | - Lisha L. Berzins
- Ecosystem Science and Management Program, University of Northern British Columbia, Prince George, British Columbia, CanadaV2N 4Z9
| | - Tricia Blake
- Alaska Songbird Institute, Fairbanks, AK 99708, USA
| | - Eli S. Bridge
- Oklahoma Biological Survey, University of Oklahoma, Norman, OK 73019, USA
| | - Russell D. Dawson
- Ecosystem Science and Management Program, University of Northern British Columbia, Prince George, British Columbia, CanadaV2N 4Z9
| | - Peter O. Dunn
- Behavioral and Molecular Ecology Group, Department of Biological Sciences, University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA
| | - Dany Garant
- Département de Biologie, Université de Sherbrooke, Sherbrooke, Québec, CanadaJ1K 2R1
| | - Geoff Holroyd
- Beaverhill Bird Observatory, Box 1418, Edmonton, Alberta, CanadaT5J 2N5
| | - Andrew G. Horn
- Department of Biology, Dalhousie University, Halifax, Nova Scotia, CanadaB3H 4R2
| | | | - Olga Lansdorp
- Department of Biological Sciences, Simon Fraser University, Burnaby, British Columbia, CanadaV5A 1S6
| | - Andrew J. Laughlin
- Department of Environmental Studies, UNC Asheville, Asheville, NC 28804, USA
| | - Marty L. Leonard
- Department of Biology, Dalhousie University, Halifax, Nova Scotia, CanadaB3H 4R2
| | - Fanie Pelletier
- Département de Biologie, Université de Sherbrooke, Sherbrooke, Québec, CanadaJ1K 2R1
| | - Dave Shutler
- Department of Biology, Acadia University, Wolfville, Nova Scotia, CanadaB4P 2R6
| | - Lynn Siefferman
- Department of Biology, Appalachian State University, Boone, NC 28608, USA
| | - Caz M. Taylor
- Department of Ecology and Evolutionary Biology, Tulane University, New Orleans, LA 70118, USA
| | - Helen Trefry
- Beaverhill Bird Observatory, Box 1418, Edmonton, Alberta, CanadaT5J 2N5
| | - Carol M. Vleck
- Department of Ecology, Evolution and Organismal Biology, Iowa State University, Ames, IA 50011-1020, USA
| | - David Vleck
- Department of Ecology, Evolution and Organismal Biology, Iowa State University, Ames, IA 50011-1020, USA
| | - Linda A. Whittingham
- Behavioral and Molecular Ecology Group, Department of Biological Sciences, University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA
| | - D. Ryan Norris
- Department of Integrative Biology, University of Guelph, Guelph, Ontario, CanadaN1G 2W1
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Pedersen L, Jackson K, Thorup K, Tøttrup AP. Full-year tracking suggests endogenous control of migration timing in a long-distance migratory songbird. Behav Ecol Sociobiol 2018. [DOI: 10.1007/s00265-018-2553-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Senner NR, Stager M, Verhoeven MA, Cheviron ZA, Piersma T, Bouten W. High-altitude shorebird migration in the absence of topographical barriers: avoiding high air temperatures and searching for profitable winds. Proc Biol Sci 2018; 285:rspb.2018.0569. [PMID: 30051848 DOI: 10.1098/rspb.2018.0569] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 06/05/2018] [Indexed: 02/05/2023] Open
Abstract
Nearly 20% of all bird species migrate between breeding and nonbreeding sites annually. Their migrations include storied feats of endurance and physiology, from non-stop trans-Pacific crossings to flights at the cruising altitudes of jetliners. Despite intense interest in these performances, there remains great uncertainty about which factors most directly influence bird behaviour during migratory flights. We used GPS trackers that measure an individual's altitude and wingbeat frequency to track the migration of black-tailed godwits (Limosa limosa) and identify the abiotic factors influencing their in-flight migratory behaviour. We found that godwits flew at altitudes above 5000 m during 21% of all migratory flights, and reached maximum flight altitudes of nearly 6000 m. The partial pressure of oxygen at these altitudes is less than 50% of that at sea level, yet these extremely high flights occurred in the absence of topographical barriers. Instead, they were associated with high air temperatures at lower altitudes and increasing wind support at higher altitudes. Our results therefore suggest that wind, temperature and topography all play a role in determining migratory behaviour, but that their relative importance is context dependent. Extremely high-altitude flights may thus not be especially rare, but they may only occur in very specific environmental contexts.
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Affiliation(s)
- Nathan R Senner
- Conservation Ecology Group, Groningen Institute for Evolutionary Life Sciences, University of Groningen, PO Box 11103, 9700, CC, Groningen, The Netherlands .,Division of Biological Sciences, University of Montana, 32 Campus Drive, Missoula, MT 59812, USA
| | - Maria Stager
- Division of Biological Sciences, University of Montana, 32 Campus Drive, Missoula, MT 59812, USA
| | - Mo A Verhoeven
- Conservation Ecology Group, Groningen Institute for Evolutionary Life Sciences, University of Groningen, PO Box 11103, 9700, CC, Groningen, The Netherlands
| | - Zachary A Cheviron
- Division of Biological Sciences, University of Montana, 32 Campus Drive, Missoula, MT 59812, USA
| | - Theunis Piersma
- Conservation Ecology Group, Groningen Institute for Evolutionary Life Sciences, University of Groningen, PO Box 11103, 9700, CC, Groningen, The Netherlands.,NIOZ Royal Netherlands Institute for Sea Research, Department of Coastal Systems, Utrecht University, PO Box 59, 1790, AB Den Burg, Texel, The Netherlands
| | - Willem Bouten
- Computational Geo-Ecology, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Sciencepark 904, 1098, XH Amsterdam, The Netherlands
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34
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Briedis M, Krist M, Král M, Voigt CC, Adamík P. Linking events throughout the annual cycle in a migratory bird—non-breeding period buffers accumulation of carry-over effects. Behav Ecol Sociobiol 2018. [DOI: 10.1007/s00265-018-2509-3] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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35
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Kassara C, Gangoso L, Mellone U, Piasevoli G, Hadjikyriakou TG, Tsiopelas N, Giokas S, López-López P, Urios V, Figuerola J, Silva R, Bouten W, Kirschel ANG, Virani MZ, Fiedler W, Berthold P, Gschweng M. Current and future suitability of wintering grounds for a long-distance migratory raptor. Sci Rep 2017; 7:8798. [PMID: 28821735 PMCID: PMC5562895 DOI: 10.1038/s41598-017-08753-w] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Accepted: 07/18/2017] [Indexed: 11/18/2022] Open
Abstract
Conservation of migratory species faces the challenge of understanding the ecological requirements of individuals living in two geographically separated regions. In some cases, the entire population of widely distributed species congregates at relatively small wintering areas and hence, these areas become a priority for the species’ conservation. Satellite telemetry allows fine tracking of animal movements and distribution in those less known, often remote areas. Through integrating satellite and GPS data from five separated populations comprising most of the breeding range, we created a wide habitat suitability model for the Eleonora’s falcon on its wintering grounds in Madagascar. On this basis, we further investigated, for the first time, the impact of climate change on the future suitability of the species’ wintering areas. Eleonora’s falcons are mainly distributed in the north and along the east of Madagascar, exhibiting strong site fidelity over years. The current species’ distribution pattern is associated with climatic factors, which are likely related to food availability. The extent of suitable areas for Eleonora’s falcon is expected to increase in the future. The integration of habitat use information and climatic projections may provide insights on the consequences of global environmental changes for the long-term persistence of migratory species populations.
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Affiliation(s)
- Christina Kassara
- Department of Biology, University of Patras, GR-26500, Patras, Greece.
| | - Laura Gangoso
- Computational Geo-Ecology Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, 1098 XH, Amsterdam, The Netherlands
| | - Ugo Mellone
- Vertebrates Zoology Research Group, CIBIO Research Inst., University of Alicante, ES-03690, San Vicente del Raspeig, Alicante, Spain
| | - Gvido Piasevoli
- Public Institute for the Protected Natural Values Management in the County of Split and Dalmatia, Prilaz braće Kaliterna 10, HR-21000, Split, Croatia
| | | | - Nikos Tsiopelas
- Hellenic Ornithological Society, Themistokleous str. 80, 10681, Athens, Greece
| | - Sinos Giokas
- Department of Biology, University of Patras, GR-26500, Patras, Greece
| | - Pascual López-López
- Cavanilles Institute of Biodiversity and Evolutionary Biology, University of Valencia, C/Catedrático José Beltrán 2, ES-46980, Paterna, Valencia, Spain
| | - Vicente Urios
- Vertebrates Zoology Research Group, CIBIO Research Inst., University of Alicante, ES-03690, San Vicente del Raspeig, Alicante, Spain
| | - Jordi Figuerola
- Department of Wetland Ecology, Estación Biológica de Doñana, CSIC, 41092, Seville, Spain
| | - Rafa Silva
- Department of Wetland Ecology, Estación Biológica de Doñana, CSIC, 41092, Seville, Spain
| | - Willem Bouten
- Computational Geo-Ecology Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, 1098 XH, Amsterdam, The Netherlands
| | | | - Munir Z Virani
- The Peregrine Fund, 5668 West Flying Hawk Lane, Boise, Idaho, 83709, USA
| | - Wolfgang Fiedler
- Max Planck Institute for Ornithology, Am Obstberg 1, D-78315, Radolfzell, Germany
| | - Peter Berthold
- Max Planck Institute for Ornithology, Am Obstberg 1, D-78315, Radolfzell, Germany
| | - Marion Gschweng
- Max Planck Institute for Ornithology, Am Obstberg 1, D-78315, Radolfzell, Germany.,Institute of Experimental Ecology, University of Ulm, Albert-Einstein-Allee 11, D-89069, Ulm, Germany.,Concepts for Conservation, Schäferweg 6, 89143, Blaubeuren, Germany
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36
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Souchay G, van Wijk RE, Schaub M, Bauer S. Identifying drivers of breeding success in a long-distance migrant using structural equation modelling. OIKOS 2017. [DOI: 10.1111/oik.04247] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Guillaume Souchay
- Swiss Ornithological Inst.; Sempach Switzerland
- ONCFS - DRE Unité Faune de Plaine, Parc d'Affaires la Rivière 8 Bd Albert Einstein Bât. B - CS 42355; FR-44323 Nantes France
| | - Rien E. van Wijk
- Swiss Ornithological Inst.; Sempach Switzerland
- Inst. of Evolutionary Biology and Environmental Studies, Univ. of Zürich; Zürich Switzerland
| | - Michael Schaub
- Swiss Ornithological Inst.; Sempach Switzerland
- Inst. of Ecology and Evolution, Division of Conservation Biology, Univ. of Bern; Bern Switzerland
| | - Silke Bauer
- Swiss Ornithological Inst.; Sempach Switzerland
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Gaitán-Espitia JD, Gómez D, Hobday AJ, Daley R, Lamilla J, Cárdenas L. Spatial overlap of shark nursery areas and the salmon farming industry influences the trophic ecology of Squalus acanthias on the southern coast of Chile. Ecol Evol 2017; 7:3773-3783. [PMID: 28616174 PMCID: PMC5468132 DOI: 10.1002/ece3.2957] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Accepted: 03/14/2017] [Indexed: 11/11/2022] Open
Abstract
Potential interactions between marine predators and humans arise in the southern coast of Chile where predator feeding and reproduction sites overlap with fisheries and aquaculture. Here, we assess the potential effects of intensive salmon aquaculture on food habits, growth, and reproduction of a common predator, the spiny dogfish—identified as Squalus acanthias via genetic barcoding. A total of 102 (89 females and 13 males) individuals were collected during winter and summer of 2013–2014 from the Chiloé Sea where salmon aquaculture activities are concentrated. The low frequency of males in our study suggests spatial segregation of sex, while immature and mature females spatially overlapped in both seasons. Female spiny dogfish showed a functional specialist behavior as indicated by the small number of prey items and the relative high importance of the austral hake and salmon pellets in the diet. Immature sharks fed more on pellets and anchovies than the larger hake‐preferring mature females. Our results also indicate that spiny dogfish switch prey (anchovy to hake) to take advantage of seasonal changes in prey availability. Despite differences in the trophic patterns of S. acanthias due to the spatial association with intensive salmon farming, in this region, there appears to be no difference in fecundity or size at maturity compared to other populations. Although no demographic effects were detected, we suggest that a range of additional factors should be considered before concluding that intensive aquaculture does not have any impact on these marine predators.
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Affiliation(s)
| | - Daniela Gómez
- Facultad de Ciencias Instituto de Ciencias Ambientales y Evolutivas Universidad Austral de Chile Valdivia Chile
| | | | - Ross Daley
- Institute for Marine and Antarctic Studies University of Tasmania Hobart TAS Australia
| | - Julio Lamilla
- Facultad de Ciencias Instituto de Ciencias Marinas y Limnologicas Universidad Austral de Chile Valdivia Chile
| | - Leyla Cárdenas
- Facultad de Ciencias Instituto de Ciencias Ambientales y Evolutivas Universidad Austral de Chile Valdivia Chile
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38
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Gómez C, Bayly NJ, Norris DR, Mackenzie SA, Rosenberg KV, Taylor PD, Hobson KA, Daniel Cadena C. Fuel loads acquired at a stopover site influence the pace of intercontinental migration in a boreal songbird. Sci Rep 2017; 7:3405. [PMID: 28611372 PMCID: PMC5469819 DOI: 10.1038/s41598-017-03503-4] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Accepted: 04/28/2017] [Indexed: 11/24/2022] Open
Abstract
Long-distance migratory organisms are under strong selection to migrate quickly. Stopovers demand more time than flying and are used by individuals to refuel during migration, but the effect of fuel loads (fat) acquired at stopover sites on the subsequent pace of migration has not been quantified. We studied stopover behaviour of Grey-cheeked Thrush (Catharus minimus) at a site in northern Colombia and then tracked their migration using an intercontinental radio-telemetry array. Tracking confirmed long-distance flights of more than 3000 km, highlighting the key importance of a single stopover site to the migration strategy of this species. Our results suggest that these songbirds behave as time-minimizers as predicted by optimal migration theory, and that fuel loads acquired at this South American stopover site, together with departure date, carry-over to influence the pace of migration, contributing to differences in travel time of up to 30 days in birds subsequently detected in the U. S. and Canada. Such variation in the pace of migration arising from a single stopover site, likely has important fitness consequences and suggests that identifying important fuelling sites will be essential to effectively conserve migratory species.
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Affiliation(s)
- Camila Gómez
- Laboratorio de Biología Evolutiva de Vertebrados, Departamento de Ciencias Biológicas, Universidad de los Andes, Bogotá, Colombia. .,SELVA: Investigación para la conservación en el Neotropico, Bogotá, Colombia.
| | - Nicholas J Bayly
- SELVA: Investigación para la conservación en el Neotropico, Bogotá, Colombia
| | - D Ryan Norris
- Department of Integrative Biology, University of Guelph, Guelph, Ontario, Canada
| | | | | | - Philip D Taylor
- Bird Studies Canada, Port Rowan, Ontario, Canada.,Acadia University, Wolfville, Nova Scotia, Canada
| | - Keith A Hobson
- Environment and Climate Change Canada, Saskatoon, Saskatchewan, Canada.,Department of Biology, University of Western Ontario, London, Ontario, Canada
| | - Carlos Daniel Cadena
- Laboratorio de Biología Evolutiva de Vertebrados, Departamento de Ciencias Biológicas, Universidad de los Andes, Bogotá, Colombia
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39
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van Wijk RE, Schaub M, Bauer S. Dependencies in the timing of activities weaken over the annual cycle in a long-distance migratory bird. Behav Ecol Sociobiol 2017. [DOI: 10.1007/s00265-017-2305-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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40
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Swift RJ, Rodewald AD, Senner NR. Breeding habitat of a declining shorebird in a changing environment. Polar Biol 2017. [DOI: 10.1007/s00300-017-2101-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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41
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Kentie R, Marquez-Ferrando R, Figuerola J, Gangoso L, Hooijmeijer JCEW, Loonstra AHJ, Robin F, Sarasa M, Senner N, Valkema H, Verhoeven MA, Piersma T. Does wintering north or south of the Sahara correlate with timing and breeding performance in black-tailed godwits? Ecol Evol 2017; 7:2812-2820. [PMID: 28428871 PMCID: PMC5395453 DOI: 10.1002/ece3.2879] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 02/02/2017] [Accepted: 02/13/2017] [Indexed: 11/11/2022] Open
Abstract
Migrating long distances requires time and energy, and may interact with an individual's performance during breeding. These seasonal interactions in migratory animals are best described in populations with disjunct nonbreeding distributions. The black‐tailed godwit (Limosa limosa limosa), which breeds in agricultural grasslands in Western Europe, has such a disjunct nonbreeding distribution: The majority spend the nonbreeding season in West Africa, while a growing number winters north of the Sahara on the Iberian Peninsula. To test whether crossing the Sahara has an effect on breeding season phenology and reproductive parameters, we examined differences in the timing of arrival, breeding habitat quality, lay date, egg volume, and daily nest survival among godwits (154 females and 157 males), individually marked in a breeding area in the Netherlands for which wintering destination was known on the basis of resightings. We also examined whether individual repeatability in arrival date differed between birds wintering north or south of the Sahara. Contrary to expectation, godwits wintering south of the Sahara arrived two days earlier and initiated their clutch six days earlier than godwits wintering north of the Sahara. Arrival date was equally repeatable for both groups, and egg volume larger in birds wintering north of the Sahara. Despite these differences, we found no association between wintering location and the quality of breeding habitat or nest survival. This suggests that the crossing of an important ecological barrier and doubling of the migration distance, twice a year, do not have clear negative reproductive consequences for some long‐distance migrants.
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Affiliation(s)
- Rosemarie Kentie
- Conservation Ecology Group Groningen Institute for Evolutionary Life Sciences (GELIFES) University of Groningen Groningen The Netherlands.,Present address: Department of Zoology University of Oxford Oxford OX1 3PS UK
| | | | - Jordi Figuerola
- Department of Wetland Ecology Doñana Biological Station (EBD-CSIC) Seville Spain.,CIBER Epidemiología y Salud Pública (CIBER ESP) Spain
| | - Laura Gangoso
- Department of Wetland Ecology Doñana Biological Station (EBD-CSIC) Seville Spain
| | - Jos C E W Hooijmeijer
- Conservation Ecology Group Groningen Institute for Evolutionary Life Sciences (GELIFES) University of Groningen Groningen The Netherlands
| | - A H Jelle Loonstra
- Conservation Ecology Group Groningen Institute for Evolutionary Life Sciences (GELIFES) University of Groningen Groningen The Netherlands
| | - Frédéric Robin
- Ligue pour la Protection des Oiseaux (LPO) Fonderies royales Rochefort France
| | - Mathieu Sarasa
- Fédération Nationale des ChasseursIssy les Moulineaux Cedex France
| | - Nathan Senner
- Conservation Ecology Group Groningen Institute for Evolutionary Life Sciences (GELIFES) University of Groningen Groningen The Netherlands
| | - Haije Valkema
- Conservation Ecology Group Groningen Institute for Evolutionary Life Sciences (GELIFES) University of Groningen Groningen The Netherlands.,Global Flyway Network Den Burg Texel The Netherlands
| | - Mo A Verhoeven
- Conservation Ecology Group Groningen Institute for Evolutionary Life Sciences (GELIFES) University of Groningen Groningen The Netherlands
| | - Theunis Piersma
- Conservation Ecology Group Groningen Institute for Evolutionary Life Sciences (GELIFES) University of Groningen Groningen The Netherlands.,Global Flyway Network Den Burg Texel The Netherlands.,Department of Coastal Systems NIOZ Royal Netherlands Institute for Sea Research and Utrecht University Den Burg Texel The Netherlands
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42
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Schmaljohann H, Lisovski S, Bairlein F. Flexible reaction norms to environmental variables along the migration route and the significance of stopover duration for total speed of migration in a songbird migrant. Front Zool 2017; 14:17. [PMID: 28344630 PMCID: PMC5360013 DOI: 10.1186/s12983-017-0203-3] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 03/07/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Predicting the consequences of continuing anthropogenic changes in the environment for migratory behaviours such as phenology remains a major challenge. Predictions remain particularly difficult, because our knowledge is based on studies from single-snapshot observations at specific stopover sites along birds' migration routes. However, a general understanding on how birds react to prevailing environmental conditions, e.g. their 'phenotypic reaction norm', throughout the annual cycle and along their entire migration routes is required to fully understand how migratory birds respond to rapid environmental change. RESULTS Here, we provide direct evidence that northern wheatears (Oenanthe oenanthe) from a breeding population in Alaska adjusted their probability to resume migration as well as the distance covered per night, i.e. travel speed, to large-scale environmental conditions experienced along their 15,000 km migratory route on both northwards and southwards migrations. These adjustments were found to be flexible in space and time. At the beginning of autumn migration, northern wheatears showed high departure probabilities and high travel speeds at low surface air temperatures, while far away from Alaska both traits decreased with increasing air temperatures. In spring, northern wheatears increasingly exploited flow assistance with season, which is likely a behavioural adjustment to speed up migration by increasing the distance travelled per night. Furthermore, the variation in total stopover duration but not in travel speed had a significant effect on the total speed of migration, indicating the prime importance of total stopover duration in the overall phenology of bird migration. CONCLUSION Northern wheatears from Alaska provide evidence that the phenotypic reaction norm to a set of environmental conditions cannot be generalized to universal and persistent behavioural reaction pattern across entire migratory pathways. This highlights the importance of full annual-cycle studies on migratory birds to better understand their response to the environment. Understanding the mechanisms behind phenotypic plasticity during migration is particularly important in the assessment of whether birds can keep pace with the potentially increasing phenological mismatches observed on the breeding grounds.
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Affiliation(s)
- Heiko Schmaljohann
- Institute of Avian Research "Vogelwarte Helgoland", An der Vogelwarte 21, Wilhelmshaven, 26836 Germany.,University of Alaska, Fairbanks, AK USA
| | - Simeon Lisovski
- Centre for Integrative Ecology, Deakin University, Geelong, VIC 3220 Australia.,Department of Neurobiology, Physiology, and Behavior, University of California, Davis, CA 95616 USA
| | - Franz Bairlein
- Institute of Avian Research "Vogelwarte Helgoland", An der Vogelwarte 21, Wilhelmshaven, 26836 Germany
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43
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Saino N, Ambrosini R, Caprioli M, Romano A, Romano M, Rubolini D, Scandolara C, Liechti F. Sex-dependent carry-over effects on timing of reproduction and fecundity of a migratory bird. J Anim Ecol 2017; 86:239-249. [DOI: 10.1111/1365-2656.12625] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2016] [Accepted: 12/04/2016] [Indexed: 11/29/2022]
Affiliation(s)
- Nicola Saino
- Department of Biosciences; University of Milan; Via Celoria 26 I-20133 Milan Italy
| | - Roberto Ambrosini
- Department of Earth and Environmental Sciences; University of Milano-Bicocca; Piazza della Scienza 2 I-20126 Milan Italy
| | - Manuela Caprioli
- Department of Biosciences; University of Milan; Via Celoria 26 I-20133 Milan Italy
| | - Andrea Romano
- Department of Biosciences; University of Milan; Via Celoria 26 I-20133 Milan Italy
| | - Maria Romano
- Department of Biosciences; University of Milan; Via Celoria 26 I-20133 Milan Italy
| | - Diego Rubolini
- Department of Biosciences; University of Milan; Via Celoria 26 I-20133 Milan Italy
| | - Chiara Scandolara
- Department of Biosciences; University of Milan; Via Celoria 26 I-20133 Milan Italy
- Swiss Ornithological Insititute; Seerose 1 CH-6204 Sempach Switzerland
| | - Felix Liechti
- Swiss Ornithological Insititute; Seerose 1 CH-6204 Sempach Switzerland
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44
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van Wijk RE, Bauer S, Schaub M. Repeatability of individual migration routes, wintering sites, and timing in a long-distance migrant bird. Ecol Evol 2016; 6:8679-8685. [PMID: 28035259 PMCID: PMC5192954 DOI: 10.1002/ece3.2578] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 10/02/2016] [Accepted: 10/05/2016] [Indexed: 12/02/2022] Open
Abstract
Migratory birds are often faithful to wintering (nonbreeding) sites, and also migration timing is usually remarkably consistent, that is, highly repeatable. Spatiotemporal repeatability can be of advantage for multiple reasons, including familiarity with local resources and predators as well as avoiding the costs of finding a new place, for example, nesting grounds. However, when the environment is variable in space and time, variable site selection and timing might be more rewarding. To date, studies on spatial and temporal repeatability in short-lived long-distance migrants are scarce, most notably of first-time and subsequent migrations. Here, we investigated repeatability in autumn migration directions, wintering sites, and annual migration timing in Hoopoes (Upupa epops), a long-distance migrant, using repeated tracks of adult and first-time migrants. Even though autumn migration directions were mostly the same, individual wintering sites often changed from year to year with distances between wintering sites exceeding 1,000 km. The timing of migration was repeatable within an individual during autumn, but not during spring migration. We suggest that Hoopoes respond to variable environmental conditions such as north-south shifts in rainfall during winter and differing onset of the food availability during spring migration.
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Affiliation(s)
- Rien E. van Wijk
- Swiss Ornithological InstituteSempachSwitzerland
- Department of Evolutionary Biology and Environmental StudiesUniversity of ZürichZürichSwitzerland
- Present address: Rien E. van Wijk Calle Zafra 12 2‐418010GranadaSpain
| | - Silke Bauer
- Swiss Ornithological InstituteSempachSwitzerland
| | - Michael Schaub
- Swiss Ornithological InstituteSempachSwitzerland
- Institute of Ecology and EvolutionDivision of Conservation BiologyUniversity of BernBernSwitzerland
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Ouwehand J, Both C. African departure rather than migration speed determines variation in spring arrival in pied flycatchers. J Anim Ecol 2016; 86:88-97. [DOI: 10.1111/1365-2656.12599] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Accepted: 09/26/2016] [Indexed: 01/19/2023]
Affiliation(s)
- Janne Ouwehand
- Conservation Ecology Group; Groningen Institute for Evolutionary Life Sciences; University of Groningen; P.O. Box 11103 NL-9700 CC Groningen, The Netherlands
| | - Christiaan Both
- Conservation Ecology Group; Groningen Institute for Evolutionary Life Sciences; University of Groningen; P.O. Box 11103 NL-9700 CC Groningen, The Netherlands
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Boves TJ, Fairhurst GD, Rushing CS, Buehler DA. Feather corticosterone levels are related to age and future body condition, but not to subsequent fitness, in a declining migratory songbird. CONSERVATION PHYSIOLOGY 2016; 4:cow041. [PMID: 27729982 PMCID: PMC5055283 DOI: 10.1093/conphys/cow041] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 08/24/2016] [Accepted: 08/27/2016] [Indexed: 05/28/2023]
Abstract
In migratory species, breeding and non-breeding locations are geographically separate, yet the effects of conditions from one stage may carry over to affect a subsequent stage. Ideally, to understand the mechanisms and implications of 'carry-over effects', one would need to follow individuals throughout the year, quantify potential environmental causal factors and physiological mediators during multiple life-history stages, and measure downstream fitness. Owing to current limitations of tracking technology, this is impossible for small, long-distance migrants, so indirect methods to characterize carry-over effects are required. Corticosterone (CORT) is a suspected physiological mediator of carry-over effects, but when collected from blood it provides only a physiological snapshot at that point in time. When extracted from feathers, however, feather corticosterone (CORTf) provides a measure of responses to stressors from previous, and longer, time periods. We collected feathers grown during two life-history stages (post-breeding and subsequent wintering) from individuals of two age classes of a rapidly declining migratory songbird, the cerulean warbler (Setophaga cerulea), on their breeding grounds and quantified CORTf concentrations. We then monitored reproduction and survival of individuals and analysed relationships among CORTf and age, body condition and future fitness. Compared with older males, second-year males had higher CORTf concentrations during both stages. When controlling for age and year, body condition at capture was positively related to CORTf concentrations from winter (especially for older birds). However, we found no relationships between CORTf and fitness (as defined by reproduction and survival). Thus, elevated CORT may represent a beneficial physiological response (e.g. hyperphagia prior to migration), particularly for certain life-history stages, and may mediate the condition in which individuals transition between stages. But for those birds that survive migration, subsequent fitness is likely determined by more recent events and local conditions (i.e. on breeding grounds), which have the potential to counteract conditions from the winter.
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Affiliation(s)
- Than J. Boves
- Department of Biological Sciences, Arkansas State University, Jonesboro, AR 72401, USA
| | - Graham D. Fairhurst
- Department of Biology, University of Saskatchewan, Saskatoon, CanadaSK S7N 5E2
| | - Clark S. Rushing
- Migratory Bird Center, Smithsonian Conservation Biology Institute, National Zoological Park, Washington, DC 20008, USA
| | - David A. Buehler
- Department of Forestry, Wildlife and Fisheries, University of Tennessee, Knoxville, TN 37966, USA
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47
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Graham CH, Supp SR, Powers DR, Beck P, Lim MCW, Shankar A, Cormier T, Goetz S, Wethington SM. Winter conditions influence biological responses of migrating hummingbirds. Ecosphere 2016. [DOI: 10.1002/ecs2.1470] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Affiliation(s)
- Catherine H. Graham
- Ecology and Evolution Department Stony Brook University Stony Brook New York 11794 USA
| | - Sarah R. Supp
- Ecology and Evolution Department Stony Brook University Stony Brook New York 11794 USA
| | - Donald R. Powers
- Biology Department George Fox University Newberg Oregon 97132 USA
| | - Pieter Beck
- Woods Hole Research Center Falmouth Massachusetts 02540 USA
| | - Marisa C. W. Lim
- Ecology and Evolution Department Stony Brook University Stony Brook New York 11794 USA
| | - Anusha Shankar
- Ecology and Evolution Department Stony Brook University Stony Brook New York 11794 USA
| | - Tina Cormier
- Woods Hole Research Center Falmouth Massachusetts 02540 USA
| | - Scott Goetz
- Woods Hole Research Center Falmouth Massachusetts 02540 USA
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48
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Senner NR, Conklin JR, Piersma T. An ontogenetic perspective on individual differences. Proc Biol Sci 2016; 282:rspb.2015.1050. [PMID: 26336173 DOI: 10.1098/rspb.2015.1050] [Citation(s) in RCA: 81] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Phenotypic differences among individuals can arise during any stage of life. Although several distinct processes underlying individual differences have been defined and studied (e.g. parental effects, senescence), we lack an explicit, unified perspective for understanding how these processes contribute separately and synergistically to observed variation in functional traits. We propose a conceptual framework based on a developmental view of life-history variation, linking each ontogenetic stage with the types of individual differences originating during that period. In our view, the salient differences among these types are encapsulated by three key criteria: timing of onset, when fitness consequences are realized, and potential for reversibility. To fill a critical gap in this framework, we formulate a new term to refer to individual differences generated during adulthood-reversible state effects. We define these as 'reversible changes in a functional trait resulting from life-history trade-offs during adulthood that affect fitness', highlighting how the adult phenotype can be repeatedly altered in response to environmental variation. Defining individual differences in terms of trade-offs allows explicit predictions regarding when and where fitness consequences should be expected. Moreover, viewing individual differences in a developmental context highlights how different processes can work in concert to shape phenotype and fitness, and lays a foundation for research linking individual differences to ecological and evolutionary theory.
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Affiliation(s)
- Nathan R Senner
- Conservation Ecology Group, Groningen Institute for Evolutionary Life Sciences (GELIFES), University of Groningen, PO Box 11103, Groningen 9700 CC, The Netherlands
| | - Jesse R Conklin
- Conservation Ecology Group, Groningen Institute for Evolutionary Life Sciences (GELIFES), University of Groningen, PO Box 11103, Groningen 9700 CC, The Netherlands
| | - Theunis Piersma
- Conservation Ecology Group, Groningen Institute for Evolutionary Life Sciences (GELIFES), University of Groningen, PO Box 11103, Groningen 9700 CC, The Netherlands Department of Marine Ecology, NIOZ Royal Netherlands Institute for Sea Research, PO Box 59, Den Burg, Texel, 1790 AB, The Netherlands
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49
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Ecological mismatches are moderated by local conditions for two populations of a long-distance migratory bird. OIKOS 2016. [DOI: 10.1111/oik.03325] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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50
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Weiser EL, Lanctot RB, Brown SC, Alves JA, Battley PF, Bentzen R, Bêty J, Bishop MA, Boldenow M, Bollache L, Casler B, Christie M, Coleman JT, Conklin JR, English WB, Gates HR, Gilg O, Giroux MA, Gosbell K, Hassell C, Helmericks J, Johnson A, Katrínardóttir B, Koivula K, Kwon E, Lamarre JF, Lang J, Lank DB, Lecomte N, Liebezeit J, Loverti V, McKinnon L, Minton C, Mizrahi D, Nol E, Pakanen VM, Perz J, Porter R, Rausch J, Reneerkens J, Rönkä N, Saalfeld S, Senner N, Sittler B, Smith PA, Sowl K, Taylor A, Ward DH, Yezerinac S, Sandercock BK. Effects of geolocators on hatching success, return rates, breeding movements, and change in body mass in 16 species of Arctic-breeding shorebirds. MOVEMENT ECOLOGY 2016; 4:12. [PMID: 27134752 PMCID: PMC4850671 DOI: 10.1186/s40462-016-0077-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Accepted: 04/03/2016] [Indexed: 06/05/2023]
Abstract
BACKGROUND Geolocators are useful for tracking movements of long-distance migrants, but potential negative effects on birds have not been well studied. We tested for effects of geolocators (0.8-2.0 g total, representing 0.1-3.9 % of mean body mass) on 16 species of migratory shorebirds, including five species with 2-4 subspecies each for a total of 23 study taxa. Study species spanned a range of body sizes (26-1091 g) and eight genera, and were tagged at 23 breeding and eight nonbreeding sites. We compared breeding performance and return rates of birds with geolocators to control groups while controlling for potential confounding variables. RESULTS We detected negative effects of tags for three small-bodied species. Geolocators reduced annual return rates for two of 23 taxa: by 63 % for semipalmated sandpipers and by 43 % for the arcticola subspecies of dunlin. High resighting effort for geolocator birds could have masked additional negative effects. Geolocators were more likely to negatively affect return rates if the total mass of geolocators and color markers was 2.5-5.8 % of body mass than if tags were 0.3-2.3 % of body mass. Carrying a geolocator reduced nest success by 42 % for semipalmated sandpipers and tripled the probability of partial clutch failure in semipalmated and western sandpipers. Geolocators mounted perpendicular to the leg on a flag had stronger negative effects on nest success than geolocators mounted parallel to the leg on a band. However, parallel-band geolocators were more likely to reduce return rates and cause injuries to the leg. No effects of geolocators were found on breeding movements or changes in body mass. Among-site variation in geolocator effect size was high, suggesting that local factors were important. CONCLUSIONS Negative effects of geolocators occurred only for three of the smallest species in our dataset, but were substantial when present. Future studies could mitigate impacts of tags by reducing protruding parts and minimizing use of additional markers. Investigators could maximize recovery of tags by strategically deploying geolocators on males, previously marked individuals, and successful breeders, though targeting subsets of a population could bias the resulting migratory movement data in some species.
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Affiliation(s)
- Emily L. Weiser
- />Division of Biology, Kansas State University, Manhattan, KS USA
| | | | | | - José A. Alves
- />CESAM, Universidade de Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
- />South Iceland Research Centre, University of Iceland, Selfoss, Iceland
| | - Phil F. Battley
- />Ecology Group, Institute of Agriculture and Environment, Massey University, Palmerston North, New Zealand
| | | | - Joël Bêty
- />Département de Biologie, Chimie et Géographie and Centre d’Études Nordiques, Université du Québec à Rimouski, Rimouski, QC Canada
| | | | - Megan Boldenow
- />Department of Biology and Wildlife, University of Alaska Fairbanks, Fairbanks, AK USA
| | - Loïc Bollache
- />Université de Bourgogne Franche-Comté, Dijon, France
- />Laboratoire Chrono-Environnement UMR CNRS 6249, Besançon, France
- />Groupe de Recherche en Ecologie Arctique, Francheville, France
| | | | | | | | - Jesse R. Conklin
- />Chair in Global Flyway Ecology, Conservation Ecology Group, Groningen Institute for Evolutionary Life Sciences (GELIFES), University of Groningen, Groningen, The Netherlands
| | - Willow B. English
- />Department of Biological Sciences, Simon Fraser University, Burnaby, BC Canada
| | - H. River Gates
- />US Fish and Wildlife Service, Anchorage, AK USA
- />Manomet Center for Conservation Sciences, Manomet, MA USA
- />ABR, Inc. - Environmental Research and Services, Anchorage, AK USA
| | - Olivier Gilg
- />Groupe de Recherche en Ecologie Arctique, Francheville, France
- />Laboratoire Biogéoscience, Université de Bourgogne, Dijon, France
| | - Marie-Andrée Giroux
- />Département de Biologie, Chimie et Géographie and Centre d’Études Nordiques, Université du Québec à Rimouski, Rimouski, QC Canada
- />Canada Research Chair in Polar and Boreal Ecology, Université de Moncton, Moncton, NB Canada
| | - Ken Gosbell
- />Victorian Wader Study Group, Victoria, Australia
- />Australasian Wader Studies Group, Victoria, Australia
| | - Chris Hassell
- />Australasian Wader Studies Group, Victoria, Australia
- />Global Flyway Network, Broome, WA Australia
| | | | - Andrew Johnson
- />Cornell Lab of Ornithology, Cornell University, Ithaca, NY USA
| | | | - Kari Koivula
- />Department of Ecology, University of Oulu, Oulu, Finland
| | - Eunbi Kwon
- />Division of Biology, Kansas State University, Manhattan, KS USA
| | - Jean-Francois Lamarre
- />Département de Biologie, Chimie et Géographie and Centre d’Études Nordiques, Université du Québec à Rimouski, Rimouski, QC Canada
| | - Johannes Lang
- />Groupe de Recherche en Ecologie Arctique, Francheville, France
- />Institute of Animal Ecology and Nature Education, Gonterskirchen, Germany
| | - David B. Lank
- />Centre for Wildlife Ecology, Simon Fraser University, Burnaby, BC Canada
| | - Nicolas Lecomte
- />Canada Research Chair in Polar and Boreal Ecology, Université de Moncton, Moncton, NB Canada
| | | | | | - Laura McKinnon
- />Department of Biology, Trent University, Peterborough, ON Canada
- />Department of Multidisciplinary Studies, York University Glendon Campus, Toronto, ON Canada
| | - Clive Minton
- />Victorian Wader Study Group, Victoria, Australia
- />Australasian Wader Studies Group, Victoria, Australia
| | | | - Erica Nol
- />Department of Biology, Trent University, Peterborough, ON Canada
| | | | - Johanna Perz
- />Department of Biology, Trent University, Peterborough, ON Canada
| | - Ron Porter
- />Delaware Bay Shorebird Project, Ambler, PA USA
| | | | - Jeroen Reneerkens
- />Chair in Global Flyway Ecology, Conservation Ecology Group, Groningen Institute for Evolutionary Life Sciences (GELIFES), University of Groningen, Groningen, The Netherlands
- />Arctic Research Centre, Department of Bioscience, Aarhus University, Roskilde, Denmark
| | - Nelli Rönkä
- />Department of Ecology, University of Oulu, Oulu, Finland
| | | | | | - Benoît Sittler
- />Groupe de Recherche en Ecologie Arctique, Francheville, France
- />Institut für Landespflege, University of Freiburg, Freiburg, Germany
| | | | - Kristine Sowl
- />Yukon Delta National Wildlife Refuge, US Fish and Wildlife Service, Bethel, AK USA
| | - Audrey Taylor
- />Department of Geography and Environmental Studies, University of Alaska Anchorage, Anchorage, AK USA
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